CN2155813Y - Miniature disposable negative pressure blood sampler - Google Patents
Miniature disposable negative pressure blood sampler Download PDFInfo
- Publication number
- CN2155813Y CN2155813Y CN 93203746 CN93203746U CN2155813Y CN 2155813 Y CN2155813 Y CN 2155813Y CN 93203746 CN93203746 CN 93203746 CN 93203746 U CN93203746 U CN 93203746U CN 2155813 Y CN2155813 Y CN 2155813Y
- Authority
- CN
- China
- Prior art keywords
- test tube
- conduit
- needle
- blood
- negative pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
The utility model relates to a miniature disposable negative pressure blood sampler which is used for sampling and testing venous blood samples. The utility model is composed of a needle, a needle sleeve, a needle holder, a catheter, and a test tube, wherein, the upper part of the catheter is provided with a long hole, the lower part is provided with a triangular support, the needle is split into an inner and an outer two parts, and the negative pressure chamber at the front part of the test tube and the handle at the back part of the test tube are combined into integration. The utility model has the advantages of small size, and convenient and reliable operation. When the utility model is used, the blood return can be clearly observed, the injury of blood vessel can be reduced, the blood sampling quantity can be accurately controlled, and the fatigue of a medical staff can be eased.
Description
This utility model is a kind of blood sampling chemical examination special implement, belongs to medical apparatus and instruments.
There are following three kinds of unfavorable factors in present existing hemostix, and the firstth, do not observe whether blood back is arranged; The secondth because the hemostix conduit diameter is big, so it is big to thrust the human body angle, needle position in blood vessel easily activity cause blood vessel injury; The 3rd unfavorable factor is accurately to control blood sampling volume, and operation is also inconvenient.
The purpose of this utility model is a kind of miniature disposable negative pressure hemostix that designs in order to overcome above three kinds of unfavorable factors.
The purpose that this utility model proposed realizes in the following manner: with reference to Figure of description, this hemostix monnolithic case is an elongated tubular as can be known, form by blood taking needle, needle guard, needle stand, conduit, test tube five parts, wherein the outer pin of blood sampling (2) is contained on the needle stand (3), needle stand (3) is bonded in the front end of conduit (6) closely, interior pin (4) closely bonds in the inner core of conduit (6), sheath (5) is sleeved on the interior pin (4), makes interior pin (4) encase also swelling on the interior outer core of conduit (6).Test tube (8) inserts conduit (6), and the right-hand member of test tube is that a crux pushes away handle, vent plug (7) swelling in the port of test tube (8), and an elongated hole (10) is established on the top of conduit (6), and the bottom of conduit is provided with tripod (9).
Fig. 1 is the full sectional view of facing of the present utility model.
Fig. 2 is a left view of the present utility model.
Be further described with reference to Fig. 1, the 2 pairs of overall structures of the present utility model and use thereof:
Outer pin (2) is contained on the needle stand (3), and needle stand (3) closely bonds (blacking place is a bonding agent) with conduit (6) left part.Needle guard (1) overlaps that pin (2) is outside gone up and straight cutting is gone into the bottom of needle stand (3).One section inner core that is bonded in conduit (6) closely of interior pin (4), (blacking place is a bonding agent), and another section stretches in the conduit and is encased by elastic rubber sheath (5).One vent plug (7) and swelling are arranged in the test tube mouth at test tube (8) left end as can be seen from Figure 1, vent plug (7) forms a confined space with test tube (8), this vent plug is by easily being manufactured by the material of needle penetration, the right-hand member of test tube 8 is that a cross pushes away handle, has constituted test tube (8) together so formed confined space and cross push away handle.Test tube (8) reduces in the 1mm with the fit clearance of conduit (6), can discharge the air in the conduit (6), so the diameter and the volume of conduit (6) are also reduced.On the top of conduit (6) elongated hole (10) is arranged.Lower front at conduit (6) has an A-frame (9) as shown in Figure 2.(A-frame (9) is invisible in Fig. 1).
From overall structure as can be known outside pin (2) with a cavity is arranged between interior pin (4) is communicated with, this cavity can be observed blood back situation when thrusting human body, the elongated hole of conduit (6) top also is set as observing blood collection procedure in addition, conduit (6) is because diameter and the existing hemostix of volume ratio are all little, so it is also just little to thrust the angle of human body, confined space part how much the deciding of test tube (8) according to blood sampling volume, in order to keep the test tube length overall constant, push away handle and add system one cross at its right-hand member, the length that pushes away handle is decided according to the length or the capacity in test tube confined space chamber.Be not isometric series of products so test tube (8) can be produced, can control blood sampling volume accurately like this.Tripod (9) is arranged on the conduit lower front, when gathering a plurality of blood sample, need change test tube (8), and in the replacing process, triangular supports is supported on patient's skin surface, can prevent that outer pin (2) is movable in blood vessel, makes blood vessel injury-free.
When needing to gather the human vein blood sample, the medical worker hands the both sides of conduit (6), take out needle guard (1), the slotted hole that makes conduit (6) top is over against the top, and it is consistent with vessel directions, place, human vein blood vessel place is thrust at the tip of outer pin (2),, illustrate that pin (2) has thrust vein blood vessel if in the cavity of needle stand (3), see blood back.Catch on the carriage at conduit (6) rear portion with forefinger and middle finger this moment, thumb top test tube (8) push away handle, test tube moves forward, then interior pin (4) pierces through sheath (5) and vent plug (7) enters test tube (8), and blood is because action of pressure flows into test tube (8), when treating that blood stops to flow into test tube (8) is extracted, extract outer pin (2) again, promptly finish blood collection procedure, need time in about 5 seconds.
Claims (1)
1, miniature disposable negative pressure hemostix is made up of blood taking needle, needle guard (1), needle stand (3), conduit (6), test tube (8) five parts, it is characterized in that:
A, described blood taking needle are divided into outer pin (2) and interior pin (4) two parts, its China and foreign countries' pins (2) are fixed on the needle stand (3), and needle stand (3) closely bonds the front end in conduit (6), interior pin (4) closely is bonded in the inner core of conduit (6) and is gripped again by conduit (6), on interior pin (4), be set with the transparent sheath of an elasticity (5)
The top of b, described conduit (6) is provided with an elongated hole (10), and leading portion place in its underpart is provided with an A-frame (9),
C, described test tube (8) are that the crux by right-hand member pushes away handle and airtight space container forms one, test tube (8) but left end just insert the vent plug (7) of a swelling in the test tube mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93203746 CN2155813Y (en) | 1993-03-06 | 1993-03-06 | Miniature disposable negative pressure blood sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93203746 CN2155813Y (en) | 1993-03-06 | 1993-03-06 | Miniature disposable negative pressure blood sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2155813Y true CN2155813Y (en) | 1994-02-16 |
Family
ID=33787516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93203746 Expired - Fee Related CN2155813Y (en) | 1993-03-06 | 1993-03-06 | Miniature disposable negative pressure blood sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2155813Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188252A (en) * | 2011-03-14 | 2011-09-21 | 张亚根 | Convenient disposable safety blood collecting device |
| CN103099627A (en) * | 2011-11-11 | 2013-05-15 | 温州市贝普科技有限公司 | Blood taking needle capable of enabling returning blood to be seen |
| CN104602601A (en) * | 2012-08-31 | 2015-05-06 | 泰尔茂株式会社 | Blood sampling device and blood bag system |
| WO2016037564A1 (en) * | 2014-09-09 | 2016-03-17 | 赵潺 | Disposable negative-pressure anterior chamber puncture needle |
| CN110236783A (en) * | 2019-07-02 | 2019-09-17 | 北京华视诺维医疗科技有限公司 | Aqueous humor acquisition device |
| CN110236784A (en) * | 2019-07-02 | 2019-09-17 | 北京华视诺维医疗科技有限公司 | Aqueous humor acquisition device |
-
1993
- 1993-03-06 CN CN 93203746 patent/CN2155813Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188252A (en) * | 2011-03-14 | 2011-09-21 | 张亚根 | Convenient disposable safety blood collecting device |
| CN102188252B (en) * | 2011-03-14 | 2015-09-16 | 张亚根 | The disposable safe hemostix of convenient use |
| CN103099627A (en) * | 2011-11-11 | 2013-05-15 | 温州市贝普科技有限公司 | Blood taking needle capable of enabling returning blood to be seen |
| CN103099627B (en) * | 2011-11-11 | 2016-09-07 | 贝普医疗科技有限公司 | A kind of visible blood-back blood taking needle |
| CN104602601A (en) * | 2012-08-31 | 2015-05-06 | 泰尔茂株式会社 | Blood sampling device and blood bag system |
| WO2016037564A1 (en) * | 2014-09-09 | 2016-03-17 | 赵潺 | Disposable negative-pressure anterior chamber puncture needle |
| US10660618B2 (en) | 2014-09-09 | 2020-05-26 | Hangzhou Sightnovo Medical Technology Co., Ltd. | Disposable negative-pressure anterior chamber paracentesis syringe |
| US11517293B2 (en) * | 2014-09-09 | 2022-12-06 | Hangzhou Sightnovo Medical Technology Co., Ltd. | Negative-pressure paracentesis syringe and use thereof |
| CN110236783A (en) * | 2019-07-02 | 2019-09-17 | 北京华视诺维医疗科技有限公司 | Aqueous humor acquisition device |
| CN110236784A (en) * | 2019-07-02 | 2019-09-17 | 北京华视诺维医疗科技有限公司 | Aqueous humor acquisition device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |